No, a puny Game Boy does not have enough power or memory to just run a PC shooter like Wolf 3D right out of the box, even if that shooter came up way back in 1992. As such, bringing it to the handheld requires a little more work than just translation of the bits and bytes into something the Game Boy can understand, which would be tough enough on its own.

Granlund's achievement relies on a cartridge that contains a custom-made PCB complete with a coprocessor to handle the heavy lifting that the Game Boy itself could never hope to tackle. Here are the results:

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Granlund's project isn't quite finished. While it does contain all ten levels from the game's shareware version, Granlund considers it a work in progress. He is however, starting to run up against a bit of a barrier. "With 3 enemy types, and the 10 levels from Episode 1, I am starting to reach the limit on how much more I can put on the ROM," he says, on the page devoted to the project.

There's a hope spot though. "[I'm] currently sitting at 123Kb out of the 128Kb available so there's still room for a little more stuff." And if you can squeeze Wolf 3D onto a cyber-frankenstein Game Boy cart, you can probably make 5Kb go a hell of a long way.

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